1043742720 has 240 divisors, whose sum is σ = 3472777728. Its totient is φ = 267386880.

The previous prime is 1043742719. The next prime is 1043742767. The reversal of 1043742720 is 272473401.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7618492 + ... + 7618628.

Almost surely, 2^1043742720 is an apocalyptic number.

1043742720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1043742720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1736388864).

1043742720 is an abundant number, since it is smaller than the sum of its proper divisors (2429035008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1043742720 is an equidigital number, since it uses as much as digits as its factorization.

1043742720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 1043742720 is about 32307.0072894411. The cubic root of 1043742720 is about 1014.3733244054.

The spelling of 1043742720 in words is "one billion, forty-three million, seven hundred forty-two thousand, seven hundred twenty".